Characterization and microbiological evaluation of chitosan-alginate microspheres for cefixime vaginal administration (CROSBI ID 249894)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Maestrelli, Francesca ; Jug, Mario ; Cirri, Marzia ; Kosalec, Ivan ; Mura, Paola
engleski
Characterization and microbiological evaluation of chitosan-alginate microspheres for cefixime vaginal administration
Chitosan-alginate microspheres (MS) were developed for cefixime vaginal administration, to overcome problems associated with its oral administration. The effect of increasing drug-loading amount, by keeping the chitosan-alginate content constant, was investigated. Mucoadhesion studies indicated that all formulations assured in situ permanence longer than 2 h. Entrapment efficiency increased with drug loading concentration in the starting solution, reaching a plateau at 30 mg/mL indicative of the achievement of an optimal drug-to-polymer ratio. MS swelling properties increased with the entrapped drug amount, and, interestingly, water-uptake reached its maximum value at the same drug loading concentration of 30 mg/mL. The relationship found between MS water-uptake and drug release rate confirmed MS prepared with 30 mg/mL cefixime as the best formulation. Microbiological studies showed a relation between cefixime release rate from MS and Escherichia coli viability reduction, definitely indicating the selected MS formulation as the best for an effective local treatment of urogenital infections.
chitosan ; alginate ; microspheres ; vaginal delivery ; mucoadhesion ; cefixime
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Podaci o izdanju
192
2018.
176-183
objavljeno
0144-8617
1879-1344
10.1016/j.carbpol.2018.03.054